Measurement challenge
Choose the item with the bigger measurement.
Score 0Streak 0Best 0
Your example set
You need at least two items per measure to compare, or three to order.
Made for your family
Change every example to objects your child already knows: their lunch bottle, favourite toy, school bag or bath cup.
Grown-up check: The app compares values entered by you. It is a learning game, not a measuring instrument, and must not be used for medicine, safety, cooking or official measurements.
Privacy
Items, settings and scores are saved only in this browser using local storage. Nothing is uploaded and there is no account, advertising or analytics. Clearing browser data removes it.
Build your own with AI
Copy this prompt into an AI coding assistant, then ask it to change the colours, units or game style for your family.
Build me a mobile-friendly measurement comparison game as one standalone HTML file. Let a parent add familiar items with an emoji, name, measure type and checked numeric value. Keep length, weight and capacity examples separate. Include two-item comparison and three-item ordering games, immediate feedback, score, streak and best score. Save everything only in local browser storage, explain privacy accurately and include a grown-up warning that it is a learning tool rather than a measuring instrument.